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Pottery/Natural Glaze on Terra Cotta

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Question
i am from a company by the name omved pure natural living. we have 6 stores in mumbai india. we sell natural products which include terra cotta which we source from pondicheery. we sell terra cotta oil burners and the bowl for the oil absorbed  essential oils hence customers complained saying it was expensive to use this product since lot of oil got lost due to absorption we  started putting natural glaze and the problem was resolved. then we were told that glazing terra cotta in natural glaze gave out poisonous vapors could you please tell me if the aforesaid is true? if so what would you suggest?

Answer
Dear Radhika Jasani,

    Thank you for your recent question. Natural glazes can be a combination of many different raw materials. There is no way to tell you if your natural glaze is safe without knowing the ingredients of the glaze and to what temperature you are firing the glaze to.

    If you would like to send me a list of materials used in your natural glaze and the cone or maturing temperature you are firing to, I will gladly let you know if your glaze is safe.

    I await your reply.

Sincerely,
Ms. Ti Phillips
Earth Stoke 'N Fire Pottery Studio and Artist Retreat
www.earthstokenfire.com

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Ti Phillips

Expertise

Will answer any questions on hand building, wheel, glaze, firing. Speciality questions to include those in glaze calculation and development, firing techniques. Please do not send questions on identifying pottery. Although I would love to add this to my question topics, I have a retreat to run as well as the studio and volunteering on AllExperts, and therefore do not have the available time to research indentification and marks. Thank you for understanding.

Experience

Experience includes 30 years in pottery design and education. Have taught online and studio classes worldwide for the last 20 years. Own a pottery retreat specializing in firing techniques. Have 12 years solid experience in glaze calculation and formulation as well as problem solving in glaze chemistry. I am the first potter in the United States to have developed a complete package of pottery equipment blueprints for a studio. The blueprints include wheels, kilns, studio furniture, wedgeboards, raku kilns, slab rollers, ball mills and studio tools.

Organizations
Alliance of Pottery Artists Worldwide Association

Publications
Ceramic Industry - PPP Wyndstryder Press - Pottery Journal

Education/Credentials
University of Sciences and Art's of Oklahoma, studied under Professor Jaymes Dudding.

Awards and Honors
Potter of the year with APAWA, various awards for showmanship and design.

Past/Present Clients
Available upon request.

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